Security readout for executives and security teams
Plain-English summary
This vulnerability affects Comcast firmware on Cisco DPC3939B devices and may let a malicious website change device configuration through CSRF. The source bundle does not provide a CVSS score, confirmed patch, or evidence of active exploitation.
Executive priority
Treat this as an asset-discovery and supportability issue unless confirmed in production. Priority increases if affected gateways manage business connectivity, expose administrative interfaces broadly, or cannot receive vendor updates.
Technical view
CVE-2017-9489 is a cross-site request forgery issue in Comcast firmware dpc3939b-v303r204217-150321a-CMCST for Cisco DPC3939B devices. The reported impact is unauthorized configuration changes. Public metadata does not include detailed affected ranges, CWE mapping, or remediation status.
Likely exposure
Exposure appears limited to environments still using Cisco DPC3939B devices with the named Comcast firmware. The bundle does not identify other affected products, internet exposure requirements, or whether later firmware is vulnerable.
Exploitation context
The CVE is not listed as CISA KEV in the bundle. No provided source states active exploitation. CSRF generally requires a user with access to the device interface to interact with attacker-controlled web content.
Researcher notes
The public bundle is sparse: no CVSS, CWE, patch status, or detailed exploit conditions are provided. Avoid broad claims beyond the named Comcast firmware and Cisco DPC3939B device unless confirmed from vendor or advisory text.
Mitigation direction
- Check Comcast and Cisco guidance for firmware updates or replacement options.
- Inventory Cisco DPC3939B devices and record firmware versions.
- Restrict access to device administration interfaces to trusted networks.
- Avoid browsing untrusted sites while authenticated to the device interface.
- Replace unsupported devices if vendor remediation is unavailable.
Validation and detection
- Confirm whether any deployed device is Cisco DPC3939B.
- Compare firmware against dpc3939b-v303r204217-150321a-CMCST.
- Review whether administrative pages include CSRF protections.
- Verify management interfaces are not exposed beyond trusted networks.
- Document vendor guidance or absence of vendor guidance.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CVE-2017-9489 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Unknown
- CVSS
- Not scored
- Known Exploited
- No
- Published
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS and timeline data
No CVSS vectors or timeline events were available in the normalized CVE source material.
Source materials
- CVE List V5 sourceCVE List V5
- https://github.com/BastilleResearch/CableTap/blob/master/doc/advisories/bastille-33.cross-site-request-forgery.txtCVE reference · x_refsource_MISC
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.